MDK is a third-person shooter game developed by Shiny Entertainment and released in 1997 by Playmates Interactive Entertainment for the PC, Macintosh, and subsequently PlayStation. It was one of the first PC games to require a Pentium or equivalent processor , (although it could also run on a 486 processor by using a version specific command line argument) and did not initially have a GPU requirement. The game soundtrack, composed by Tommy Tallarico, was also released.

The game tells the story of its protagonist, Kurt Hectic and his attempts to rescue Earth from an alien invasion of gigantic strip mining city-vehicles named 'Minecrawlers', which are not only removing all of earth's natural resources but are also flattening any people and cities that get in their way. The game combined fast action with fully 3D rendered, state-of-the art (for the time) graphics and a warped sense of humour. It featured a "sniper mode" that allowed the player to zoom in on an enemy targets.

A sequel, MDK2 was developed by Bioware and released by Interplay for the PC and Dreamcast in 2000, and later for the PlayStation 2 (titled MDK 2: Armageddon) in 2001.